Speed-controller



C. F. RUBSAM.

SPEED CONTROLLER.

APPLICATION FILED FEB. 15, refs.

1,383,667. Patented July 5, 1921.

. WITNESSES Y INVENTOR G1 Rubsam 2 /3J"07=- &Q I Br W A TTORNEYS MATES CHARLES IF. RUBSAM, OF BROOKLYN, NEW YORK.

SPEED-CONTROLLER.

rasaeer.

Specification of Letters Patent.

Patented July 5, 1921. I

Application filed February 15, 1919. Serial No. 277,300.

T 0 aZZ whom it may concern:

Be it known that I, CHARLES F. RUBsAM, a citizen of the French Republic, residing in the city of New York, borough of Brookl n, in the county of Kings and State of hew York, have invented a new and Improved Speed-Controller, of which the following is a full, clear, and exact description.

My invention has for its object to provide a speed controller having an arm which is operatively engaged by a spiral member, which is held yieldingly in adjusted position by a spring member in which the spiral memher is disposed, the rotation of the spring member with the spiral member being prevented by engagement with the arm.

lVhile my sneed regulator is of particular value for use in connection with various forms of motor driven sound reproducing machines, it will, of course, be understood that it is not limited to this use as it may be employed with many different forms of motors which may be used for various purposes.

Additional objects of the invention will appear in the following specification in which the preferred form of my invention is described. v

In the drawings similar'reference characters refer to similar parts in all the views, in which- I Figure 1 is a sectional view illustrating the construction of my speed controller;

Fig. 2 is a sectional view on the line 2+2 of Fig. 1; and

Fig. 3 is a sectional view showing a modified form of the invention.

By referring to the drawings, it will be seen that a base 5 has an opening 6; there being a plate 7 disposed on the base 5 having an'opening 8 through which a stud 9 is disposed. This stud 9 extends through a coil 10, at one end of a spiral member 11. The stud 9 is secured in the said coil so that the spiral member 11 may be rotated by the knob 12, which is disposed above the plate 7,, and which has a pointer 13, which may be compared with marks on the plate 7 to indicate the position to which the knob 12 has been rotated. An operating arm 14 which may be pivoted at 15', as shown in the drawings, is operatively engaged by the spiral member 11. The said arm 14 extends through an opening 16 at one side of a cylindrical spring member 17 and through a slot 18 at the other side of the cylindrical spring member.

It will be understood that the rotation of the cylindrical spring member 17 with the spiral member 11 is prevented by the engagement of the arm 14 with the sides of the opening 16 and longitudinal slot 18. This cylindrical spring member 17, however, has frictional engagement with the spiral member 11 to yieldingly hold the spiral member 11 in the position to which it may be rotated.

It will be understood that when the arm 14 has been moved to its lowermost position within the cylindrical spring member 17 by action of the spiral member 11 through the rotation of the coils 10 and stud 9 that its movement will be greater than the movement of the brake disk when at the limit of its speed.

In the modified form of the invention shown in Fig. 3 of the drawings, it will be seen that the arm 14 is disposed through a longitudinal slot 16'? at one side of the cylindrical spring member 17, as'well as through the longitudinal slot'18 at the other side of the cylindrical spring member. In this construction, the cylindrical spring member 17 a at its end 17 is bent over and clamped between the coil end 10 of the spiral member 11 and the plate 7. This not' only may serve to prevent the longitudinal movement of the cylindrical spring member 17 with the rotation of the spiral member 11, but may also serve as an additional means to hold the cylindrical spring member 17 from rotating with the spiral member 11. In other respects the construction illustrated in Fig. 3 of the drawings corresponds with the construction illustrated in Fig. 1 of the drawings.

Having thus described my invention, I claim as new and desire to secure by Letters Patent: v V

1. In a speed regulator, a spiral member, an operating member operatively engaged by the spiral member, and a housing having frictional engagen'lent with the spiral member and provided with means which prevents its rotation with thespiral member.

2. In a speed regulator, a spiral member, an operating member operatively engaged by the spiral member, a cylindrical member in which the spiral member is disposed, said cylindrical member frictionally engaging the spiral member, the cylindrical member having openings through which the operating member is disposed which prevents the rotation of the cylindrical member with the spiral member.

3. In a speed regulator, a spiral member,

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an operating member operatively engaged by the spiral member, and a cylindrical member in which the spiral member is dis posed, said cylindrical member frictionally engagin the spiral member, the spiral member having means which prevents its rotation on its axis relatively to the second member. I

4r. In a speed regulator, a spiralmember, an operating member operatively engaged by the spiral member, a laterally yielding member inclosing said spiral member, said laterally yielding member trictionally secur to the spiral member and having diame call opposed open ngs through which the operating member is disposed, which prevents the rotation of the laterally yielding member withqthe spiral member.

5. In a speed regulator, a spiral member, a cylindrical'member inclosing the spiral member, and trictionally engaging the latter, said cylindrical member having alined openings through its opposed sides, and a pivoted operating member extending through said openings, said operating member being operatively engaged by the spiral member whereby it may be moved into different positions. I

6. ln a speed regulator, a spiral member, a cylindrical member in which the spiral member is disposed which trictionally engages the spiral member, the cylindrical member having openings in opposite sides, and an arm disposed through the openings and operativel v engaged by the spiral member.

7. In a speed regulator, a base member 7 having opening, stud disposed through the openingin the base member, a spiral member in one end of which the stud 1s secured, tlnrd member having frictional engagment with the spiral member and clamped between the spiral member and the base member, and an arm operatively engaged by thespiralmember;

8. In a speedregulator. a spiral member, a second member operatively engaged by the spiral member, and means for holdithe second member in differentoperative p sitions. V

9. In a speed regulator, a spiral member, a second member operatively engaged by the spiral member, and a laterally yielding means for holding the second member in different operative positions.

10. In a speed regulator, a spiral member,

a second member operatively engaged by the spiral member, and a third member which in coo aeration with the second member holds the spiral member yieldingly in the position to which it may be rotated by the operator.

11. In a speed regulator, a spiral member, an arm operatively engaged by the side of the spiral member which serves to move the arm in. either direction longitudinally of the axis of the spiral member by the rotation ot' the spiral member.

12. In a speed regulator, a spiral member, an elongated hollow member in which the spiral member is disposed, the elongated member having openings in opposite sides, and an arm disposed through the openings, the arm being operatively engaged by the spiral member.

13. In a speed regulator, a spiral member, an elongated hollow member'in which the spiral member is disposed, the elongated member having longitudinally extending slots in opposite sides, and an arm disposed through the slots, the arm being operatively engaged by the spiral member.

l" in a speed regulator, a basemember having an opening, a stud extendingthrough said opening, a spiral member on the inner end of said stud, a cylindrical member frictionally supported about said spiral member, and provided intermediate its ends with 'alined diametrically opposed openings, and

'an operating member extended through the openings of the cylindrical member anden-. gaged by said spiral, and means on the free end of the stud for causing rotary movement of the spiral to move the operating member to difterent'positions.

15. In a speed regulator, a base member having arertical opening, a stud err-tending vertically through saidopening, a coil surrounding and se.:ured to the inner end of said stud. a spiral member secured to the inner end of: said stud, means for rotating the stud and spiral member, a laterally yielding member surrounding said spiral and coil and frictionally secured to the latter, said laterally yielding member provided intermcdiateits ends with diametrically opposed openings, and an operating arm extending through the openings of the laterally yielding member and engaged bysaid spiral f member, whereby upon movement of the latter the arm may be moved into different positions.

' CHARLES F. RUBSAM. 

